Thread: Crashes & Panics: NAS for Macs w/ Netatalk, HFS drives, USB wifi dongle.

hey folks!

i'm new ubuntu, please bare me! been bit of apple power user, linux gets whole lot more complicated - though love amount of control , flexibility gives!

here's issues (likely related): intermittent (~daily) mix of crashes , kernel panics. kernel panic log below - not sure how recover prior boot's crash log.. kernel panic screen can 'exited' ctrl-alt-f6 ctrl-alt-f7, though computer doesn't shut down after kernel panics -- hangs on 'kubuntu' shut-down screen.. beyond panics, crashes involve fans spinning , lights being on, monitor not turn on mouse clicks / keystrokes, keyboard lights not turn on / of (i.e. caps lock), , ssh unavailable.. have hard shut-down (hold power button). .

hardware: ibm think centre a50: p4 3.8ghz, 1gb ram, 40gb hd.
additional hw: internal 400gb hfs+ hd (journaling disabled), tenda wireless usb dongle, enternal 2tb hfs+ hd (journaling disabled, recent addition - problem occurred before), dvdr
additional sw: netatalk, hfs utils, avahi, open ssh, x11vnc.

notes: installed ubuntu 11.10, added xfce4, xubuntu desktop, , kubuntu desktop.. use xubuntu desktop. far computer serves nas server other apple computers in house.. not else on machine @ point..

setup netatalk , avahi based on http://www.kremalicious.com/2008/06/...achine-volume/ -- though did not compile netatalk separately, used packaged version in ubuntu apparently no longer needs compiled due updates base config.

due crashes , other issues, i've had force power-off computer on several occations, , perform umount -l on 400gb hfs drive, causing corrupt catalogue , incorrect file counts (corrected fsck_hfsplus).

added fstab:
/dev/sdb2 /home/zryan/timemachine hfsplus rw,exec,auto,nosuid,nodev,user 0 0

example of manual mount command:
sudo mount -t hfsplus -o rw,nosuid,nodev /dev/sdb2 /[mountpoint]
netatalk options used: cnidscheme:dbd options:usedots,tm

looking on dmesg, see few other concerning lines may somehow related.. these near boot:
[ 0.543320] critical temperature reached (90 c), shutting down.
[ 0.543437] thermal lnxtherm:00: registered thermal_zone0
[ 0.543443] acpi: thermal zone [thm0] (90 c)
...
[ 6.463147] scsi 2:0:0:0: direct-access seagate external sg12 pq: 0 ansi: 4
[ 6.463279] scsi: killing requests dead queue
[ 6.463425] scsi: killing requests dead queue
[ 6.464126] scsi: killing requests dead queue
[ 6.464240] scsi: killing requests dead queue
[ 6.469146] scsi: killing requests dead queue
[ 6.476167] scsi: killing requests dead queue
[ 6.476297] scsi: killing requests dead queue
[ 6.476550] scsi: killing requests dead queue
...
[ 19.738271] shpchp: standard hot plug pci controller driver version: 0.4
[ 19.833219] intel_rng: firmware space locked read-only. if can't or
[ 19.833224] intel_rng: don't want disable in firmware setup, , if
[ 19.833226] intel_rng: system has functional
[ 19.833229] intel_rng: rng, try using 'no_fwh_detect' option.
...
whole bunch of entries this, varying frequencies , reg. rules:
[ 20.575943] cfg80211: updating information on frequency 2412 mhz 20 mhz width channel regulatory rule:
[ 20.575952] cfg80211: 2402000 khz - 2472000 khz @ khz), (600 mbi, 2000 mbm)
...
[ 31.000773] [drm] capturing error event; more information in /debug/dri/0/i915_error_state
[ 31.004027] render error detected, eir: 0x00000010
[ 31.004027] [drm:i915_report_and_clear_eir] *error* eir stuck: 0x00000010, masking
[ 31.004027] render error detected, eir: 0x00000010
[ 33.260661] ext4-fs (sda6): re-mounted. opts: errors=remount-ro,commit=0


latest kernel panic occurred ~1hr after boot little after accessing ubuntu's drives using netatalk:
[ 1433.229355] bug: unable handle kernel null pointer dereference @ (null)
[ 1433.229447] ip: [<c102b8e0>] kmap+0x10/0x60
[ 1433.229498] *pde = 1b6e3067 *pte = 00000000
[ 1433.229533] oops: 0000 [#1] smp
[ 1433.229564] modules linked in: dm_crypt ppdev appletalk snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_seq_midi snd_rawmidi arc4 snd_seq_midi_event rt2800usb rt2800lib crc_ccitt rt2x00usb rt2x00lib mac80211 snd_seq cfg80211 snd_timer snd_seq_device snd psmouse soundcore snd_page_alloc serio_raw binfmt_misc shpchp nls_utf8 parport_pc hfsplus lp parport usbhid hid usb_storage uas i915 e1000 drm_kms_helper drm i2c_algo_bit video floppy
[ 1433.229985]
[ 1433.230000] pid: 1981, comm: duplicity not tainted 3.0.0-14-generic #23-ubuntu ibm 8183wr4/ibm
[ 1433.230069] eip: 0060:[<c102b8e0>] eflags: 00010246 cpu: 0
[ 1433.230108] eip @ kmap+0x10/0x60
[ 1433.230133] eax: 00000000 ebx: 00000000 ecx: 0000e8b1 edx: d6984000
[ 1433.230175] esi: 00000002 edi: 000008b1 ebp: d6985b94 esp: d6985b90
[ 1433.230217] ds: 007b es: 007b fs: 00d8 gs: 00e0 ss: 0068
[ 1433.230255] process duplicity (pid: 1981, ti=d6984000 task=debeb300 task.ti=d6984000)
[ 1433.230310] stack:
[ 1433.230327] dea756c0 d6985bb0 e00bafd0 0000001a d6985bbe dea756c0 00002000 00001b73
[ 1433.230402] d6985bc0 e00bb05c 00000002 b1e85c28 d6985bd8 e00bc7e5 e00bc760 00000004
[ 1433.230479] dea756c0 d6985c28 d6985bfc e00bd32a 00000000 d6985e58 de532000 e8b10004
[ 1433.230554] call trace:
[ 1433.230581] [<e00bafd0>] hfsplus_bnode_read+0x40/0xb0 [hfsplus]
[ 1433.230626] [<e00bb05c>] hfsplus_bnode_read_u16+0x1c/0x30 [hfsplus]
[ 1433.230673] [<e00bc7e5>] hfsplus_brec_keylen+0x65/0x90 [hfsplus]
[ 1433.230718] [<e00bc760>] ? hfsplus_brec_lenoff+0x30/0x50 [hfsplus]
[ 1433.230763] [<e00bd32a>] hfsplus_brec_goto+0x8a/0x140 [hfsplus]
[ 1433.230810] [<e00b99d5>] hfsplus_readdir+0x195/0x530 [hfsplus]
[ 1433.230858] [<c1138f00>] ? sys_ioctl+0x80/0x80
[ 1433.230895] [<c1001c24>] ? __switch_to+0x94/0x1a0
[ 1433.230933] [<c1037f60>] ? finish_task_switch+0x40/0xc0
[ 1433.230974] [<c152baf1>] ? __schedule+0x2f1/0x620
[ 1433.231011] [<c107114b>] ? ktime_get_ts+0xeb/0x120
[ 1433.231045] [<c1026208>] ? default_spin_lock_flags+0x8/0x10
[ 1433.231087] [<c152dd0d>] ? _raw_spin_lock_irqsave+0x2d/0x40
[ 1433.231129] [<c10b12e6>] ? delayacct_end+0x96/0xb0
[ 1433.231163] [<c1026208>] ? default_spin_lock_flags+0x8/0x10
[ 1433.231205] [<c152dd0d>] ? _raw_spin_lock_irqsave+0x2d/0x40
[ 1433.231253] [<c11246f7>] ? swap_cgroup_record+0x67/0x80
[ 1433.231296] [<c1124077>] ? mem_cgroup_uncharge_swap+0x27/0x60
[ 1433.231338] [<c110c648>] ? swap_entry_free+0x108/0x170
[ 1433.231376] [<c10fddba>] ? do_swap_page+0x36a/0x580
[ 1433.231414] [<c1136483>] ? path_openat+0xc3/0x350
[ 1433.231449] [<c10ff6ea>] ? handle_pte_fault+0x19a/0x220
[ 1433.231486] [<c10ff878>] ? handle_mm_fault+0x108/0x210
[ 1433.231525] [<c1223960>] ? security_file_permission+0x90/0xb0
[ 1433.231567] [<c1139226>] vfs_readdir+0xa6/0xd0
[ 1433.231599] [<c1138f00>] ? sys_ioctl+0x80/0x80
[ 1433.231632] [<c11393d8>] sys_getdents64+0x68/0xc0
[ 1433.231669] [<c152def4>] syscall_call+0x7/0xb
[ 1433.231706] [<c1520000>] ? ext3_load_journal+0x1ea/0x246
[ 1433.231741] code: 74 26 00 8b 15 c8 05 88 c1 e8 ed fe ff ff 5d c3 8d 74 26 00 8d bc 27 00 00 00 00 55 89 e5 53 3e 8d 74 26 00 89 c3 e8 90 05 50 00 <8b> 03 c1 e8 1e 69 c0 40 03 00 00 05 00 34 7b c1 2b 80 0c 03 00
[ 1433.233274] eip: [<c102b8e0>] kmap+0x10/0x60 ss:esp 0068:d6985b90
[ 1433.233274] cr2: 0000000000000000
[ 1433.278165] ---[ end trace a1cf1c3de0f65c8a ]---

no tips, suggestions, or guidance on log files should checking?

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